How to use Layui to develop a full-screen scrolling animation effect

How to use Layui to develop a full-screen scrolling animation effect

Layui is a simple and easy-to-use front-end UI framework that provides a set of simple CSS and JavaScript components , to facilitate developers to quickly build pages. Among them, the full-screen scrolling animation effect is a common effect in many web designs. Below, I will introduce in detail how to use Layui to implement a full-screen scrolling animation effect and provide specific code examples.

1. Preparation
Before starting, we need to ensure that the relevant files of Layui have been introduced. You can download and import Layui's CSS and JavaScript files from the official Layui website, or use a CDN link.

2. HTML structure
We first need to define the HTML structure of the entire page. In this example, we will use a div to wrap each scrolled screen content, and a parent div as the scroll container.

<div class="scroll-container">
  <div class="scroll-section"></div>
  <div class="scroll-section"></div>
  <div class="scroll-section"></div>
</div>

3. CSS Style
Next, we need to define the corresponding CSS style. Some basic styles are used here, which you can adjust according to your project needs.

.scroll-container {
  width: 100%;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

.scroll-section {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 30px;
  color: #fff;
}

.scroll-section:nth-child(2) {
  background-color: #333;
}

.scroll-section:nth-child(3) {
  background-color: #666;
}

4. JavaScript code
Realize the full-screen scrolling animation effect through some components and events of Layui. The following is a specific JavaScript code example:

layui.use('element', function(){
  var element = layui.element;
  
  // 监听滚动容器，实现滚动切换效果
  element.on('scroll(scroll-container)', function(data){
    var index = data.index; // 当前滚动的索引
    scrollTo(index);
  });
  
  // 滚动到指定的屏幕
  function scrollTo(index) {
    var scrollContainer = document.querySelector('.scroll-container');
    var scrollSections = scrollContainer.querySelectorAll('.scroll-section');
    
    scrollContainer.scrollTop = scrollSections[index].offsetTop;
  }
});

Through the above code, we listen to the scroll event of the scroll-container container in Layui's element module. When scrolling occurs, we get the index of the current scroll and call the scrollTo function to scroll to the specified screen. In the scrollTo function, we achieve the scrolling effect by modifying the scrollTop property of scroll-container.

5. Summary
Through the above steps, we used the Layui framework to implement a simple full-screen scrolling animation effect. You can make corresponding style and code adjustments according to your needs. Layui provides a wealth of components and events that can help us develop page effects more easily. Hope this article is helpful to you!

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